From a class of 20 students 10 are to be chosen for a competition. Out of these students 4 students are fixed to be taken due to their excellent performance in previous competitions. In how many ways can the team be formed
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निम्िलिखखत ववषयों में से किसी ( एि ) ववषय पर 50से60शब्दोंमेंअिच्ु छेद लिखखए । 6
1. समय िा सदपु योग :
संिेतत्रबदं ु---
* स म य ब ह ु म ल्ू य ह ै ।
* उचचतसमयिाचिु ावसफितािाआिार। * समय िा उपयोग सफिता िा िारण ।
* महाि िोगों िे उदाहरण । class 7
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